import java.util.*;

public class test3 {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        while(scan.hasNextInt()){
            int n = scan.nextInt();

            for (int i = 0; i < n; i++) {
                for(int j = 0;j < n; j++) {
                    if(i == j) {
                        System.out.print("*");
                    }else if (i+j+1 == n) {
                        System.out.print("*");
                    }else{
                        System.out.print(" ");
                    }
                }
                System.out.println();
            }
        }
    }
}